it's a clause the UFC puts in for their champions. as for fighting elsewhere, well, Fedor was allowed to fight for his country in Sambo. he just wants the same flexibility that he's always had. he's part owner of M-1also. the UFC is just pissed Fedor was smart enough with his previous contracts that the UFC doesn't have a claim to him or his likeliness, like they did with the other fighters after they bought Pride.